McAlpine single pipe trap HC7 1.5" for basin and sanitary fittings

McAlpine single pipe trap HC7 with a 1.5" connection is designed for drainage of basins and sanitary fittings. The trap creates a sealed water barrier that prevents sewer gases from entering indoor spaces while allowing wastewater to flow away efficiently. It is suitable for standard 1.5" outlet fittings used in residential bathrooms, cloakrooms and light commercial environments where a compact, reliable trap is required.

Advantages

The single pipe design offers a compact footprint for installation under basins and within limited cabinet space. Manufactured by a known plumbing brand, the trap provides consistent water sealing performance and straightforward connection to standard 1.5" outlets. Its simple construction reduces the number of joints and potential leak points, while its durable materials resist typical household wastewater conditions.

Suitable for

• Domestic washbasins and bathroom sinks
• Cloakroom and en-suite basins
• Light commercial washrooms in offices, cafés and small shops
• Replacement of existing 1.5" basin traps

Key specifications

• Connection size: 1.5" outlet compatible with standard basin fittings
• Type: single pipe (P-trap style water seal)
• Application: basin and sanitary fitting drainage
• Installation position: under-basin, inline with drain outlet
• Material characteristics: corrosion-resistant plumbing grade materials suitable for household wastewater (manufacturer-standard construction)

How to use

Install the trap directly beneath the basin outlet so the 1.5" connection aligns with the basin tailpiece and the outlet to the waste pipe. Ensure all connection surfaces are clean and secure threaded or slip-fit joints according to standard plumbing practice. Check the trap orientation so the water seal forms correctly and tighten fittings to prevent leaks. After installation, run water and inspect all connections for leaks; re-tighten or reseal joints if required.

Usage recommendations

For reliable performance, use with standard 1.5" basin fittings and ensure correct alignment during installation. Periodically inspect the trap for debris build-up and clear when necessary to maintain drainage flow. When replacing an older trap, verify outlet dimensions and access space to ensure the single pipe trap fits correctly.